Roof Bonding

Frost on roof indicating effective insulation 
applied by Isotech

Rigid Foam applied to the underside of the roof

The Isotech system is based on a CFC free two component rigid foam supplied to us by the most respected manufacturer in the industry.
It has a Class 1 certification for surface spread of flame and does not add to the fire hazard in a loft space.

The applied foam has a core density of 32-36 Kg/m3. At normal application depths this adds less than 2 Kg/m2 to the roof structure

The material is processed through a proportioning pump fitted in our van.

This machine is driven by compressed air and requires electricity from the domestic supply to power switches and the heater block.

A twin heated hose is fed from the van to the point of application in the roof space.

The two components mix at the tip of the spray gun under pressure and are reacting as they are applied to the underside of the roof structure.

The flow of the rising foam seals the gaps which previously allowed the ingress of freezing winds, wind blown rain, snow and debris.

The foam sets hard in minutes and its exceptional bonding characteristics enable us to confidently guarantee that treated slates or tiles will not slip for a period of at least 20 years.

The insulation qualities of polyurethane foam are excellent and will reduce the condensation that normally occurs in a roof.

Specific apertures are maintained at the soffits to ventilate the loft space.

Isotech is also experienced in the installation of Velux type windows which in combination with a greater depth of foam have formed the basis of many successful loft conversions.